The Phantom Blade is a unique design variant of the Hidden Blade. It works as a combination Hidden Blade, Dart Gun and miniature crossbow.
This can be upgraded with skill points and equipment to change how it functions. This can increase its range, damage, duration of poison and many other aspects.
Darts - Can be Poisoned or coated in Berserk Poison
Bolts - Lethal even in their compact form.